Cock or valve.



No. 679,525. Patented July 30, l90l.

n. m. BBOPHY. COCK 0R VALVE (Application fllcd Mar. 21, 1901.)

(No Model.)

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No. 679,525. Patented July 30, I90I.

M. M. BBUPHY.

COCK BR VALVE.

(Application filed Mar. 21, 1901.)

2 Shemtr-Shaat 2.

{No Model.)

UNTTnn STATES PATENT OFFICE.

MICHAEL MARY BROPHY, OF LONDON, ENGLAND.

COCK OR VALVE.

SPECIFICATION forming part of Letters Patent No. 679,525, dated July 30,1901.

Application filed March 21, 1901. Serial No. 52,197. (No model.)

To all whom it may concern:

Be it known that LMICHAEL MARY BROPHY, a subject of the King of GreatBritain, residing at 251 High Holborn, London, England, have inventednew and useful Improvements in Cocks or Valves, of which the followingis a specification.

My invention relates to cocks or valves which are especially intendedfor use with steam or hot or cold water in connection with baths andlavatories, but are also applicable for other purposes, the object of myinvention being to provide a cock which is of simple construction andwhich is less liable to leak than such cocks as hitherto constructed.

According to my invention I provide a shell or casing having the usualpartition provided with an opening with which the valve is arranged andwhich is constructed with a cylindrical extension in which the valveworks, the said extension being made separate from the other part of thecasing and advantageously attached thereto by screwing it onto a nipplewhich is provided with one or more inclined surfaces at its upper endfor a purpose hereinafter described.

The valve is in the form of a cylindrical cup having at its lower end arecess in which a packing-ring for making contact with the valve-seatingis arranged. Above this valve, in the top of the extension, is a diskhaving a central spindle or stem projecting through the outer end of theextension and serving for the attachment of an operating handle or key.The disk is formed at its periphery with a flange which is adapted tobear against a packing-ring located in a recess within the extension inorder to prevent the escape of water or steam and to obviate thenecessity for using a gland around the stem.

On the upper outer periphery of the valvecup are inclined surfacesadapted to lie in contact with the inclined surfaces upon the top of thecentral portion of the shell in such a manner that when a slightrotation is imparted to the cup the valve proper will be lifted from itsseat, or vice versa. The desired rotation is imparted to the valve-cupfrom the disk, which is provided with teeth or projections which engagewith other teeth or projections upon the upper edge of the valve-cup,sufficient space being provided to allow of the desired longitudinalmovement of the latter. Stops are arranged in connection with theinclines upon the shell for liniiting the movement of the valve, andconsequently also of thehandle, in either direction. Within the cup isarranged a spring, the lower end of which bears upon the bottom of thesaid cup, while the upper end bears upon the disk.

To enable the invention to be fully understood, I will describe the sameby reference to the accompanying drawings, in which- Figure 1 is alongitudinal section of a cook or valve constructed according to myinvention. Fig. 2 is a transverse section of the same, and Fig. 3 is aplan view with certain parts removed. Fig. 4 is an elevation showing therelative positions of the inclines on the valve and the inclines on theshell when the valve is closed. Fig. 5 is a side View of the main partof the shell, and Fig. 6 is an end elevation of the same. Fig. 7 is anelevation of the valve proper, with its operating disk and spindle. Fig.8 is an under side View of the operating-disk, and Fig. 9 is an underside view of the valve proper.

a is the shell or casing of the valve. Z) is the partition in the saidcasing.

c is the valve proper, in the form of a cylindrical cup. d is the box orcylindrical extension in which the said valve proper is located, and cis the nipple formed upon the casing a and to which the box or extensiond is connected by screw-threads.

ff are the inclined surfaces upon the upper edge of the nipple e, thesaid inclined surfaces being formed by cutting away portions of the saidnipple, so as to leave intermediate portions 9 g, which act as stops forthe valve, as clearly shown in Figs. 3, 4, 5, and 6.

The valve 0 is formed with lateral projecting lugs 71 h, Figs. 7 and 9,the under side of which are inclined and adaptedto cooperate with theinclined faces ffin such a manner that when a certain amount of rotationis imparted to the said valve proper the latter will be lifted from itsseat. These lugs h it have upward extensions or teeth '0' i.

j is the disk for operating the valve, the said disk having a stem 7t,which projects through the top of the box d, where it is provided withan operating-handle land having upon its upper face a flange 'm,designed to press against a packing-ringn in the said box J flange m ofthe disk against the packing-ring m, but also to press the valve againstthe seat q in the partition I).

With the construction hereinbefore described it will be obvious thatwhen by means of the handle Z the valve 0 is rotated, so that the lugs hit run up the inclines ff, the said valve will be lifted more or lessfrom its seat against the pressure of the spring 19 and that when thesaid handle Z is returned the pressure of the said spring will cause thelugs h to keep in contact with the inclines ff and thereby close thevalve.

The stops 9 g serve as abutments against which the lugs 77, It willimpinge in order to limit the rotary movement of the valve.

It willbe noticed that recesses r r are formed in the nipple 6immediately opposite to the positions which the lugs 72, h occupy whenin their normal position, as .shown in Fig. 4, these recesses r 1"serving to allow the said lugs to move quite clear of the inclinedsurfaces ff so as to leave the valve free'to be pressed against its seatunder the action of the spring 19.

Having now particularly described and ascertained the nature of my saidinvention and in what manner the same is to be performed, I declare thatwhat I claim is 1. In a cook or valve the combination with thevalve-casing, of a valve proper adapted to slide longitudinally in a boxor extension thereon, inclined surfaces in the said box or extension,corresponding inclined surfaces upon the valve which cooperate with theinclined surfaces in the casing, a disk provided with a stem whichprojects through the box or casing and with teeth which engage with thevalve, the said disk being arranged in connection with packing so as toprevent the escape of steam around the stem, and aspring arrangedbetween the disk and the valve, substantially as, and for the purpose,described.

2. In a cook or valve the combination of a casing having a partitionprovided with a hole adapted to be closed by the valve proper, a nippleupon the side of the said casing in which the valve slides, inclinedsurfaces upon the edge of the said nipple, corresponding inclinedsurfaces upon the valve, stops for limiting the movement of the saidvalve rela tively with the inclined surfaces, a cap or cover secured tothe nipple and inclosing the valve, a disk provided with a stemprojecting through the said cover and with teeth which cooperate withteeth upon the valve and a spring which tends to force the disk andvalve apart all substantially as, and for the purposes, described.

MIOHAEL MARY BROPHY.

\Vitnesses:

JOHN E. BOUSFIELD, O. G. REDFERN.

